Home / 43,212.80-64,819.20-40,588.40

Finding the Fourth Proportional to 43,212.80, 64,819.20 and 40,588.40

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Solution

The fourth proportional to 43,212.80, 64,819.20 and 40,588.40 is: 60,882.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,212.80 : 64,819.20 = 40,588.40 : x
  2. Step 2: Convert to fraction form
    43,212.80/64,819.20 = 40,588.40/x
  3. Step 3: Cross multiply
    43,212.80x = 64,819.20 × 40,588.40
  4. Step 4: Simplify right side
    43,212.80x = 2,630,907,617.28
  5. Step 5: Solve for x
    x = 2,630,907,617.28/43,212.80
  6. Step 6: Final answer
    x = 60,882.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.